Windshield Shade Solar Funnel Cooker

The Solar Funnel Cooker
http://solarcooking.org/plans/funnel.htm

  (SNIP) ... As a University Professor of Physics with a background in energy usage, I set out to develop a means of cooking food and sterilizing water using the free energy of the sun. First, I looked at existing methods.

The parabolic cooker involves a reflective dish that concentrates sunlight to a point where the food is cooked. This approach is very dangerous since the sun's energy is focused to a point which is very hot, but which cannot be seen.

(SNIP) ... While studying this problem, I thought again and again of the great need for a safe, inexpensive yet effective solar cooker. It finally came to me at Christmastime a few years ago, a sort of hybrid between the parabola and a box cooker. It looks like a large, deep funnel, and incorporates what I believe are the best features of the parabolic cooker and the box cooker.    ---CONTINUED---

Windshield Shade Solar Funnel Cooker
http://www.solarcooking.org/plans/windshield-cooker.htm

  While experimenting with various designs of cookers over the past year to introduce in the indigenous communities where I live and work in southern Mexico, I hit upon an utterly simple way to make an instant portable solar oven.  Taking a reflective accordion-folded car windshield shade, you can turn it into a version of the solar funnel, by simply sewing on little Velcro tabs along the long notched side. Here’s how:    ---CONTINUED---

A Dollar Store Solar Cooker
https://americanpreppersnetwork.com/a-dollar-store-solar-cooker/

Once the prepping bug bites, it isn’t long before “going completely off grid” becomes a dream, if not a goal. Serious research begins, and soon the realization hits that solar power is the gold standard. Not only is it the ultimate alternative energy source, but it also takes a lot of “gold” to go 100% off-grid. For folks like me, it is daunting, if not impossible, to meet the cost of solar panels, inverters, deep cycle batteries, etc. It’s just not in the cards.

-snip-

But what if you DON’T have the materials, tools and skills? Or what if you want a solar cooker for your bug out location or vehicle. It needs to be portable, and if you are like me, it has to be very, very cheap to build. ---CONTINUED---